(RADIATOR) Redundancy for RADIUS

Wed Apr 16 05:48:05 CDT 2003

Hi Surajh,

If you have two DBs where each has one pool for each CGSN, then you can have fail-over between them. The pools for CGSN_1 are not overlapping, so you need to double the number of IP-addresses. And you would need some clever mechanism to return the address to the DB server that keeps the pool it belongs to. I assume that you also double the radius server...

/Ingvar

> -----Original Message-----
> From: Surajh Surjoo [ MTN - Innovation Centre ]
> [mailto:Surajh.Surjoo at mtn.co.za]
> Sent: den 16 april 2003 09:59
> To: Radiator Mailing List (E-mail)
> Cc: Radiator-Support (E-mail)
> Subject: (RADIATOR) Redundancy for RADIUS
> 
> 
> Hi all
> 
> We are using Radiator with two Ericsson CGSNs for GPRS.
> We allocate IPs from two different ranges using RADIUS and 
> the two CGSN are geograhically separated.
> The MySQL DB is configured on the same server as the Radiator 
> radius server.
> Problem we have is if one server goes down then no access to 
> GPRS is available to that CGSN.
> How can we improve this situation so that when one server 
> goes down then the CGSN will use the other server?
> Bear in mind that the IP pools would be different and the 
> routing through FW will not allow them through that server.
> What about having one DB supporting both radius servers with 
> all the IP pools and using the NAS identifier to then allocate IP?
> Would this work? What about the DB redundancy then?
> 
> Has anyone implemented such a scenario? We have some ideas, 
> but would like your views. They might be better and easier ;-)
> 
> regards
> Surajh Surjoo
> Systems Engineer - Data
> Mobile: 0832129829
> Mobile Fax: 083 8 2129829
> Office Fax: 011 3018811
> Office Tel: 011 3016000
> surajh.surjoo at mtn.co.za
> 
> "Imagination is more important than Knowledge" - Albert Einstein
> 
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